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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX Technical Data Sheet Page 1 October 2008 407 Keyjoint Sacrificial metal keyjoint system for on ground slabs Uses Preformed metal Keyjoint is used to form “keyways” along construction joints between adjacent pavement slabs enabling loads to be transferred from slab to slab while allowing differential movement between them. Keyjoints are suitable for forming construction joints in concrete pavements subject to light vehicle traffic: „ Light industrial pavements „ Driveways „ Pedestrian walkways Advantages „ Enables transfer of vertical loads across the joints between slabs „ Allows lateral movement between the slabs, but limits vertical differential movement between slabs „ Tighter key taper, giving less differential vertical movement „ Has a rigid top edge „ Allows continuous concrete placement with preformed internal joints „ Incorporates unique drive’n’twist stake system to make installation simple „ Provides a more uniform joint line at a fraction of the cost of conventional formwork „ Knock-outs provide for placement of square dowels „ Suitable for round and square dowels „ Available in 3 m and 6 m lengths to suit five slab thicknesses „ Ideal for light traffic areas „ Companion capping available for 10 mm recess, or permanent capping with Rip-A-Strip in 4 colours Description Patented, multi-function galvanised steel stay in place formwork system for concrete slabs. Keyjoints are designed for pavement joints in light traffic applications. Keyjoints are available with various PVC capping strips to assist sealing the joints and / or provide aesthetics. For pavements subject to heavy loads, Diamond Dowels may be more appropriate (refer separate Technical Data Sheet). Knock-out tabs 24mm square at approx 150mm centres. Recommended to pour concrete this side first, so full height of Keyjoint is supported by stakes. Stake slots at approx 150mm centres. Recommended maximum spacing betweeen stakes is 1.2m. September 2007


Technical Dayta Sheet Compedium
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